Thank you Henry. I stand corrected. It is only 40+ years young and not 60 years old.
I bought the lens on eBay in 2007 for about $60.00. This lens came with an 1:1 optical extender.
Got some good pictures without extender and miserable ones with the 1:1 extender. I did not know
what shallow DoF meant and how "thin" it could be for a macro. I posted a photo on one of the
other fora I used to frequent and a fellow member was quizzing me about the lens and complimenting
my shots. During the conversation I found that he had a similar lens that he sold because he could not
get any good shots. To make long story short, it turned out I bought the lens from him.

I told him
had he not obsessed with using 1:1 extender, he could have had a better luck with the lens.
Sury